CVE-2025-30160: Redlib is an alternative private front-end to Reddit

Q: How do I fix CVE-2025-30160?

redlib: upgrade to 0.36.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-30160 being exploited?

CVE-2025-30160 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-30160 affect?

CVE-2025-30160 affects redlib. Severity is high (CVSS 7.5). Redlib is an alternative private front-end to Reddit. A vulnerability has been identified in Redlib where an attacker can cause a denial-of-service (DOS) condition by submitting a specially crafted base2048-encoded DEFLATE decompression bom

Q: How urgent is CVE-2025-30160?

Priority 43/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2025-30160 is a high-severity flaw (CVSS 7.5) affecting redlib. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Redlib is an alternative private front-end to Reddit. A vulnerability has been identified in Redlib where an attacker can cause a denial-of-service (DOS) condition by submitting a specially crafted base2048-encoded DEFLATE decompression bomb to the restore_preferences form. This leads to excessive memory consumption and potential system instability, which can be exploited to disrupt Redlib instances. This vulnerability is fixed in 0.36.0.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-400, CWE-502
Published	2025-03-20
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: redlib

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-03-20 19:15 UTCPublished CVE record published
2026-06-17 09:08 UTCUpdated Record last modified

redlib redlib UPGRADE

Affected: < 0.36.0

Fixed in: 0.36.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy redlib || rpm -q redlib || redlib --version

2. UPGRADE to 0.36.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade redlib

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade redlib

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-30160?

redlib: upgrade to 0.36.0. Exact commands for each OS are on this page.

Is CVE-2025-30160 being exploited?

CVE-2025-30160 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-30160 affect?

CVE-2025-30160 affects redlib. Severity is high (CVSS 7.5). Redlib is an alternative private front-end to Reddit. A vulnerability has been identified in Redlib where an attacker can cause a denial-of-service (DOS) condition by submitting a specially crafted base2048-encoded DEFLATE decompression bom

How urgent is CVE-2025-30160?

Priority 43/100. High severity; Remotely exploitable, no login, no user action

References

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